NetScience
@netscience.bsky.social
Reader in Applied Mathematics at Queen Mary University working on Network Science, Data Science, and digital Epidemiology. Website: www.nicolaperra.com
Network structure shapes consensus dynamics through individual decisions www.pnas.org/doi/abs/10.1...
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
www.pnas.org
January 15, 2026 at 4:50 PM
Network structure shapes consensus dynamics through individual decisions www.pnas.org/doi/abs/10.1...
Feedback-induced attitudinal changes in risk preferences www.nature.com/articles/s41...
Feedback-induced attitudinal changes in risk preferences - Nature Communications
Normative theory predicts that feedback should not affect decisions under risk, but past findings disagree. Here, the authors show that feedback shifts risk-taking by changing attitudes rather than th...
www.nature.com
January 15, 2026 at 4:30 PM
Feedback-induced attitudinal changes in risk preferences www.nature.com/articles/s41...
A physics-informed graph neural network conserving linear and angular momentum for dynamical systems www.nature.com/articles/s41...
A physics-informed graph neural network conserving linear and angular momentum for dynamical systems - Nature Communications
Learning complex dynamics from data often leads to unstable or unphysical predictions. Here, the authors introduce Dynami-CAL GraphNet, a physics-informed architecture that conserves linear and angula...
www.nature.com
January 15, 2026 at 4:23 PM
A physics-informed graph neural network conserving linear and angular momentum for dynamical systems www.nature.com/articles/s41...
Training large language models on narrow tasks can lead to broad misalignment www.nature.com/articles/s41...
Training large language models on narrow tasks can lead to broad misalignment - Nature
Finetuning a large language model on a narrow task of writing insecure code causes a broad range of concerning behaviours unrelated to coding.
www.nature.com
January 15, 2026 at 4:17 PM
Training large language models on narrow tasks can lead to broad misalignment www.nature.com/articles/s41...
Reproducing the first and second moment of empirical degree distributions arxiv.org/abs/2505.10373
Reproducing the first and second moment of empirical degree distributions
The study of probabilistic models for the analysis of complex networks represents a flourishing research field. Among the former, Exponential Random Graphs (ERGs) have gained increasing attention over...
arxiv.org
January 15, 2026 at 3:35 PM
Reproducing the first and second moment of empirical degree distributions arxiv.org/abs/2505.10373
Advanced Torrential Loss Function for Precipitation Forecasting link.aps.org/doi/10.1103/...
Advanced Torrential Loss Function for Precipitation Forecasting
An advanced torrential loss function for machine-learning-based precipitation forecasting outperforms conventional functions in forecast accuracy.
link.aps.org
January 14, 2026 at 8:55 AM
Advanced Torrential Loss Function for Precipitation Forecasting link.aps.org/doi/10.1103/...
Adaptive behaviors neutralize bistable explosive transitions in higher-order contagion arxiv.org/abs/2601.05801
Adaptive behaviors neutralize bistable explosive transitions in higher-order contagion
During contagion phenomena, individuals perceiving a risk of infection commonly adapt their behavior and reduce their exposure. The effects of such adaptive mechanisms have been studied for processes ...
arxiv.org
January 12, 2026 at 8:03 AM
Adaptive behaviors neutralize bistable explosive transitions in higher-order contagion arxiv.org/abs/2601.05801
Impact of behavioral heterogeneity on epidemic outcome and its mapping into effective network topologies link.aps.org/doi/10.1103/...
Impact of behavioral heterogeneity on epidemic outcome and its mapping into effective network topologies
Human behavior plays a critical role in shaping epidemic trajectories. During health crises, people respond in diverse ways in terms of self-protection and adherence to recommended measures, largely r...
link.aps.org
January 12, 2026 at 8:02 AM
Impact of behavioral heterogeneity on epidemic outcome and its mapping into effective network topologies link.aps.org/doi/10.1103/...
Social networks and international migration in Honduran villages www.pnas.org/doi/abs/10.1...
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
www.pnas.org
January 7, 2026 at 9:22 AM
Social networks and international migration in Honduran villages www.pnas.org/doi/abs/10.1...
Framing Unionization on Facebook: Communication around Representation Elections in the United States arxiv.org/abs/2510.01757
Framing Unionization on Facebook: Communication around Representation Elections in the United States
Digital media have become central to how labor unions communicate, organize, and sustain collective action. Yet little is known about how unions' online discourse relates to concrete outcomes such as ...
arxiv.org
January 7, 2026 at 9:17 AM
Framing Unionization on Facebook: Communication around Representation Elections in the United States arxiv.org/abs/2510.01757
Structural reducibility of hypergraphs arxiv.org/abs/2601.02603
Structural reducibility of hypergraphs
Higher-order interactions provide a nuanced understanding of the relational structure of complex systems beyond traditional pairwise interactions. However, higher-order network analyses also incur mor...
arxiv.org
January 7, 2026 at 9:16 AM
Structural reducibility of hypergraphs arxiv.org/abs/2601.02603
Effective Graph Resistance as Cumulative Heat Dissipation arxiv.org/abs/2601.00330
Effective Graph Resistance as Cumulative Heat Dissipation
Effective graph resistance is a fundamental structural metric in network science, widely used to quantify global connectivity, compare network architectures, and assess robustness in flow-based system...
arxiv.org
January 5, 2026 at 7:46 AM
Effective Graph Resistance as Cumulative Heat Dissipation arxiv.org/abs/2601.00330
Towards Operational Validation of LLM-Agent Social Simulations: A Replicated Study of a Reddit-like Technology Forum arxiv.org/abs/2508.21740
Towards Operational Validation of LLM-Agent Social Simulations: A Replicated Study of a Reddit-like Technology Forum
Large Language Models (LLMs) enable generative social simulations that can capture culturally informed, norm-guided interaction on online social platforms. We build a technology community simulation m...
arxiv.org
January 2, 2026 at 8:33 AM
Towards Operational Validation of LLM-Agent Social Simulations: A Replicated Study of a Reddit-like Technology Forum arxiv.org/abs/2508.21740
Reducibility of higher-order networks from dynamics arxiv.org/abs/2404.08547
Reducibility of higher-order networks from dynamics
Empirical complex systems can be characterized not only by pairwise interactions, but also by higher-order (group) interactions influencing collective phenomena, from metabolic reactions to epidemics....
arxiv.org
January 2, 2026 at 8:32 AM
Reducibility of higher-order networks from dynamics arxiv.org/abs/2404.08547
Strategic Network Abandonment arxiv.org/abs/2512.24270
Strategic Network Abandonment
Socio-economic networks, from cities and firms to collaborative projects, often appear resilient for long periods before experiencing rapid, cascading decline as participation erodes. We explain such ...
arxiv.org
January 2, 2026 at 8:27 AM
Strategic Network Abandonment arxiv.org/abs/2512.24270
Average shortest-path length in word-adjacency networks: Chinese versus English link.aps.org/doi/10.1103/...
Average shortest-path length in word-adjacency networks: Chinese versus English
Complex networks provide powerful tools for analyzing and understanding the intricate structures present in various systems, including natural language. Here, we analyze topology of growing word-adjac...
link.aps.org
January 2, 2026 at 8:26 AM
Average shortest-path length in word-adjacency networks: Chinese versus English link.aps.org/doi/10.1103/...
Generalized degree-biased random walk on scale-free networks link.aps.org/doi/10.1103/...
Generalized degree-biased random walk on scale-free networks
We propose a generalized degree-biased random walk model (GDBRW) for scale-free networks, where transition probabilities inversely depend on source and target node degrees via tunable exponents $\ensu...
link.aps.org
January 2, 2026 at 8:25 AM
Generalized degree-biased random walk on scale-free networks link.aps.org/doi/10.1103/...
Higher-order processes shape diverse patterns in biodiversity link.aps.org/doi/10.1103/...
Higher-order processes shape diverse patterns in biodiversity
Higher-order dynamics are essential for maintaining species diversity in ecological systems. In this paper, we examine how intraspecific competition affects interspecific interactions within spatially...
link.aps.org
January 2, 2026 at 8:25 AM
Higher-order processes shape diverse patterns in biodiversity link.aps.org/doi/10.1103/...
Gaussian process emulation for exploring complex infectious disease models journals.plos.org/ploscompbiol...
Gaussian process emulation for exploring complex infectious disease models
Author summary Detailed individual-based models can capture a high degree of realism, but their complexity often makes them too slow or cumbersome to explore fully. In our work, we explore how Gaussia...
journals.plos.org
December 30, 2025 at 8:41 AM
Gaussian process emulation for exploring complex infectious disease models journals.plos.org/ploscompbiol...
Information is localized in growing network models arxiv.org/abs/2512.23622
Information is localized in growing network models
Mechanistic network models can capture salient characteristics of empirical networks using a small set of domain-specific, interpretable mechanisms. Yet inference remains challenging because the likel...
arxiv.org
December 30, 2025 at 8:38 AM
Information is localized in growing network models arxiv.org/abs/2512.23622
A game theoretic treatment of contagion in trade networks journals.plos.org/ploscompbiol...
A game theoretic treatment of contagion in trade networks
Author summary When networks of stakeholders trade goods that can become contaminated with an infection, like animal diseases in the pet trade or wood pests in the lumber trade, there is a trade off b...
journals.plos.org
December 29, 2025 at 7:23 AM
A game theoretic treatment of contagion in trade networks journals.plos.org/ploscompbiol...
The paradox of intervention: Resilience in adaptive multirole coordination networks www.pnas.org/doi/abs/10.1...
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
www.pnas.org
December 26, 2025 at 12:08 PM
The paradox of intervention: Resilience in adaptive multirole coordination networks www.pnas.org/doi/abs/10.1...
Uncovering inequalities in new knowledge learning by large language models across different languages www.pnas.org/doi/abs/10.1...
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
www.pnas.org
December 26, 2025 at 12:07 PM
Uncovering inequalities in new knowledge learning by large language models across different languages www.pnas.org/doi/abs/10.1...
Inferring fine-grained migration patterns across the United States www.nature.com/articles/s41...
Inferring fine-grained migration patterns across the United States - Nature Communications
This study releases a very high-resolution migration dataset that reveals trends that shape daily life: rising moves into high-income neighborhoods, racial gaps in upward mobility, and wildfire-driven...
www.nature.com
December 26, 2025 at 12:06 PM
Inferring fine-grained migration patterns across the United States www.nature.com/articles/s41...
Social learning moderates the tradeoffs between efficiency, stability, and equity in group foraging arxiv.org/abs/2510.27683
Social learning moderates the tradeoffs between efficiency, stability, and equity in group foraging
Collective foragers, from animals to robotic swarms, must balance exploration and exploitation to locate sparse resources efficiently. While social learning is known to facilitate this balance, how th...
arxiv.org
December 26, 2025 at 12:04 PM
Social learning moderates the tradeoffs between efficiency, stability, and equity in group foraging arxiv.org/abs/2510.27683